Congrats are in order for Carson Daly and Siri Pinter! The couple welcomed their third child, daughter London Rose, to the family on Wednesday. The baby girl, who weighed 8 lbs. 11 oz. and measured 22 inches long, joins her older siblings, Jackson, 5, and Etta, 23 months. Carson and Siri shared sweet snaps from the birth on Twitter and received plenty of well wishes, including a note from Carson's Today show pal Savannah Guthrie, who recently gave birth to her first child.